Chapter Index

    To be honest, I was a little nervous when Park Yuna declared herself a sex expert.

    What if I couldn’t even get inside her before she couldn’t hold back and came?

    But those worries turned to absurdity when I heard why she considered herself so skilled.

    Thrust! Thrust! Thrust! Thrust!

    As I thrust inside her, wiggling my hips, I was now certain that her confidence was just an illusion.

    “Eek! Ugh! Haa! Jihoon, just a moment! I just came… Ee-hick!”

    “I haven’t yet.”

    “Haa-ugh!”

    Another scream-like moan erupted from her.

    Still, I held her thighs with both hands in a missionary position, shaking my hips relentlessly.

    “Augh! Ugh! Slowly, heet, it’s my first time, so just go a little slower… Heek!”

    Perhaps because it was her first time, her forcefully spread pussy was unintentionally clenching around me tight.

    A little blood was staining it, but the tightness was strong enough to make me quickly forget about it.

    “The grip is definitely good. But I wouldn’t call you a sex expert.”

    “Eung-hick! Th-that can’t be, haugh! It can’t be…!”

    If the word “sex expert” meant a body that drove you crazy regardless of tightness, then she was a sex expert.

    As a former actress, her beautiful face as she panted, and her chest, which stole the show with its overwhelming bounce, were truly wonderful.

    Her slender shoulders and waist, making you wonder how she could carry such big bags.

    Her solid pelvis, which looked like it could withstand having several children, was also a plus.

    The only problem was that after saying she’d satisfy me, she was feeling it several times more sensitively.

    “Haa-ack! Ang, augh! Jihoon, stop… I think I’m going to come again… Ugh!”

    How long has it been since you last came?

    Even though I complained inwardly, there was no way to stop a body unfamiliar with a dick from nearing climax, and in the end, her hips shook as she quickly reached her second climax.

    “Eunghaaaa…!”

    “Yuna, you said you were a sex expert. You should be satisfying me, why are you the only one enjoying it?”

    “It’s, heuh! It’s not that… as soon as your thing went in, my body got weird… Augh!”

    “I’m testing whether you’re suitable as my girlfriend, so pay attention!”

    “No, if you move again, haa-euk!”

    Squish, squish, squish, squish!

    Her pussy wrinkles, which hadn’t been filled for long, kept wriggling and massaging my dick.

    I was thrusting hard because I wanted to cum too, but this time, Park Yuna was the only one to come.

    “Heuh-geuk!”

    “You came again already?”

    “J-Jihoon… let me rest for a bit. I’ve come too much, my head feels strange….”

    “I haven’t even cum once, you can’t be like that already!”

    Stab! Stab! Stab! Stab!

    “Hee-euk! Ugh! Eueung! Heet! No, I’m going to come again… Heuek! I’m going to die from pleasure…!”

    Fortunately, this time enough sensation built up in my crotch as well.

    After shaking my hips repeatedly to shake it off, I was able to ejaculate along with my partner, who was reaching her fourth climax.

    “Haa-ack… haa… ugh! Eunghaaa….”

    She was panting, with her limbs drooping like laundry.

    Anyone would think we’d been at it for hours.

    But I had to teach her that being a gold digger wouldn’t be easy, and it would be a shame to end with just one round with such a great body.

    So as I was taking off the old condom and putting on a new one, Park Yuna suddenly jumped up.

    “W-wait! Wait a minute! I’ll… do it with my mouth, heuek. I’ll do it for you!”

    Forcing her heavy body to move, she crouched like a cat in front of my crotch.

    Then, with rough breaths, she bit my dick with her lips and started moving her head.

    “Wooeup, hooeup… oop, hooeueup….”

    Squeezing and sucking as she puffed hot air from her nose because she was out of breath.

    She was desperate to satisfy me with her mouth, trying to keep me from wanting to thrust anymore.

    But after having tasted pussy, there was no way my dick would be satisfied with her current terrible technique.

    “Yuna, stop and lie down again.”

    “No! I’ll really make you feel good, just a little more, haa-oop…!”

    It looked like there would be no end to it if I left it like this, so I forced her to lie down.

    Grabbing her chest, which was bouncing and then settling with the recoil, I thrust my thing back in.

    “Haa-eut, no…! If you thrust again… Hee-euk!”

    “You’re not talented at sex, so just quietly tighten your pussy!”

    As expected, the inside of her pussy felt more vivid without a condom.

    Her huge breasts, which couldn’t be held in one hand, were also bouncing non-stop, fueling my excitement.

    “Eunghaa, stop…! Stop thrusting inside with that thick thing…!”

    No matter how many times I looked at it, her face and body were truly impressive.

    Enough to make her cocky confidence understandable.

    She had a face that would get her treated like a princess wherever she went, but right now, she was just a female who had no choice but to tighten her lower lips to satisfy me.

    “Haa-geuk! No, again…! Ugh! I’m going to come again, I think I’m going to come, just a little slower-, hee-geueuk!”

    Before I knew it, a moan erupted from her mouth, unable to hold back as she went on her own.

    I flipped her selfish body over so she was lying face down, only enjoying herself.

    She was in a position with her lower body facing me like a bitch, but her upper body was collapsed on the pillow as if she couldn’t put any strength into her arms.

    “Haa-euk!”

    Still, she was still kneeling, so she was in a position with only her butt raised toward me.

    I also knelt to match the height, and pushed my raw dick in again.

    “Hee-euk! Ugh! Eueung… no det! This position, the dick goes deeper, augh!”

    “You’re an adult, what’s a dick! You have to say dick properly!”

    Jeuk, jeuk, jeuk, jeuk!

    “Haa-geuk! D-dick! The dick feels so good, I think I’m going to get weird, augh! Please stop thrusting with that thick dick…!”

    “You’re going to come alone again? Is that how you bragged about being a sex expert with such a crappy pussy?!”

    “Heueung! Ugh! Eueung! Haa-eut! Heeueueueuk!”

    Park Yuna couldn’t even answer me and came again.

    She couldn’t do anything, swept away by the waves of climax, but her butt was undulating seductively, fulfilling her female duty.

    I also became impatient with the desire for my second ejaculation, and started shaking my hips even faster.

    Jeub-jeub-jeub-jeub!

    “Hee-euk! Eek! I j-just came, if you thrust like that… Haa-geuk! I’m going to come again… Eunghaaa-ack!”

    Jjee-eek! Jjee-eek!

    Not only did she come in rapid succession, but she also splashed the sheets on her bed like she was electrocuted.

    I also quickly pulled out my dick and scattered the semen on her back, which was as white as the bed sheets.

    “Hoo… I’m not satisfied yet, so I’m going to keep going.”

    “….”

    “Yuna?”

    Since there was no answer, I went to the side and looked at her face.

    She, who had been screaming just now, had quickly fainted and fallen asleep.

    ‘She fainted after only cumming twice?’

    I had expected something when she said she was a sex expert, but it was disappointing that she wasn’t even close to it, and that she’d fainted after going three or four times by herself when I only cummed once.

    ‘I showed her who’s boss, so I guess things are going according to plan.’

    Of course, I wasn’t going to stop until she repented, but I didn’t know what to do in the current situation.

    First, after making sure that she had definitely fainted, I ran the cleaning cam on my phone.

    I then shined the camera flash on the bed, cleanly restoring the sheets that were wet with her fluids.

    I could have told this woman to clean up on her own, but it was addictive once you tried it, so I made sure to use it whenever I had the chance.

    ‘Alright, it’s clean.’

    The cleaning cam didn’t clean people’s bodies, so I directly wiped the semen off Yuna’s back and sweat off her whole body with a tissue.

    I felt it when I first saw her naked, but her smooth skin had no blemishes at all, so it felt like looking at a blank canvas.

    ‘Come to think of it, didn’t she say that it was uncomfortable to sleep on her stomach when she was streaming?’

    I flipped her over and laid her down comfortably.

    Her face, which was fast asleep, made me feel like the rough act just now was a lie.

    Looking at her breasts, which were still maintaining their volume even when she was lying down, I wondered how nice it would have been if we had met normally.

    “Wooeueum… Mommy….”

    A grown woman calling for her mom.

    Just like when she said “dick” earlier, she had a childish side unlike her body.

    ‘But what do I do now? Should I just leave her here and go home?’

    There wasn’t really a problem with it, but I felt like I had become a bad guy for no reason, so it was a bit weird.

    Thinking that she might wake up soon, I turned on the sex wiki without her knowing.

    [Alert: Park Yuna’s document has been updated.]

    [Alert: 1 wiki point has been awarded as compensation for automatic document updates. (Current points: 2)]

    The notification that points had been received was always welcome.

    Let’s see what’s been updated.

    ㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡ

    [Park Yuna]

    ㅡDocument LV: 2

    ㅡBirth: 2004 (Age 19, Korean Age 21)

    (Omitted)

    ▽ 7. Relationships and Sexual Experiences

    ㆍNo romantic experience, and has had her breasts sucked and ejaculated on by Han Jihoon. → Fainted from her first experience with Han Jihoon.

    ▽ 8. erogenous zone

    ㆍClitoris: 3-5 times more sensitive than the average woman, depending on the situation. Therefore, stimulation with hands or genital insertion can cause her to climax in an instant.

    ▽ (Omitted)

    ▽ 13. Incidents and Accidents

    ㆍUnderwent a sexual compatibility test to date Han Jihoon, but failed due to poor technique.

    However, thanks to her earnest request, she promised to practice and be retested.

    ㆍShowed terrible oral sex technique in her second test three days later.

    Instead, she tried to make up for it with insertive sex, but unlike what she thought she was a sex expert, she cummed four times before Han Jihoon ejaculated for the first time, and fainted when he ejaculated for the second time.

    ㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡ

    Information was recorded that she had her first experience with me, and the actions up to this point were written in the incidents section.

    But what caught my eye was the erogenous zone section.

    ‘Her clitoris is 3-5 times more sensitive? I was just joking, but she really did have a crappy pussy.’

    I thought she was a sex expert, but it turned out she had premature climaxing, which was a pity for this woman.

    From my perspective, I didn’t hate the fact that she would make her hips bounce with just a little bit of it, because it was subtly impactful.

    [Alert: Park Yuna’s document LV has increased due to recent updates. (Current Park Yuna document LV: 3)]

    [Alert: As a reward for achieving Park Yuna’s document LV 3, the subject’s sexual behavior status will be displayed in the document.]

    I wasn’t sure if there was a difference in document level, but it rose faster than with Yiseo.

    I didn’t think I needed to check her sexual behavior status, so I closed the app.

    ‘But this woman isn’t thinking of waking up. Should I wait a little longer?’

    Thirty minutes passed as I waited, just messing around with my phone.

    I felt like I had done enough, so I was about to get up from the bed.

    “Wooeu….”

    “Yuna, you’re finally awake.”

    “Jihoon…? Did I faint?”

    “Yeah. Are you okay?”

    “I’m okay, but….”

    She sat up and looked around her, saying.

    “That’s weird… I’m pretty sure I peed before I fainted.”

    “I wiped it up for you while you were sleeping. But you’ll still have to put it in the washing machine.”

    “Ah… did you wipe my body too?”

    “Yeah, whatever.”

    “Th-thank you. You’re surprisingly kind….”

    Her face was so pale that I could clearly see it blushing from her cheeks to her ears.

    If blood had been on the sheets, she might have suspected how the traces had been removed, but fortunately, the amount wasn’t that much, so it didn’t fall on the bed.

    “Oh! Did I pass the sexual compatibility test? We’re dating now, right?”

    “No?”

    “Huh? Why? I fainted because it was so good!”

    “You were the only one who fainted, and I only cummed twice. So you failed.”

    “Ah, no way…. Can you give me one more chance? I’ll really satisfy you next time! Please, huh?”

    If she gave up like this, I was going to tell her the truth and get an apology, but it seemed like I had to push it back a little further.

    I didn’t think she’d fall off this much anyway, and it didn’t matter because I needed an excuse to keep having relations with her in order to tame her body.

    “Since you’re so desperate, I’ll give you a chance.”

    “Really? Thank you!”

    “Give up on doing it with your mouth or hands, and make sure I can enjoy it when I thrust inside you.”

    “Yes! I’ll definitely satisfy you next time!”

    Yuna’s eyes, looking up at me, were shining with more enthusiasm than ever.

    No matter how much she practiced her technique, it would be useless because of the sex wiki.

    ===

    ‘…I can’t stay like this!’

    After Jihoon returned home, and the aftermath of the stormy first experience subsided.

    Yuna was deep in thought with an anxious expression.

    “….”

    She was now keenly aware.

    She was nothing like a sex expert, and it was close to impossible to satisfy Jihoon as she was.

    ‘I’ve never felt like that before. I really thought I was going to die because it was so good….’

    Just thinking about the situation a little while ago, her lower abdomen, which had barely calmed down, was stinging again.

    It was such a blissful sensation that she felt like she would become addicted right away, but she had to endure it if she wanted to become Jihoon’s girlfriend.

    ‘I have to endure without fainting until he’s satisfied. To do that, I need to get used to feeling good….’

    She was wondering if there was a good way, and she was browsing the Internet.

    Soon, she was able to find some tantalizing information on a consultation community.

    [Question: I’m worried because I have a constitution that makes me come easily. Are there any ways to get used to sleeping? I orgasm too often when I do it, so I’m exhausted the next day.]

    [Answer: Men who masturbate a lot can become unable to climax when having sex with women and become delayed ejaculation. Wouldn’t it be the same for women? If you make your body dull by masturbating frequently, you will become less sensitive to stimulation, so the master won’t visit you as often.]

    ‘If I masturbate, I won’t orgasm as much? That’s it!’

    She had never done it before, but she had already decided to do anything to win Jihoon’s heart.

    ‘I’m going to masturbate like crazy so that my body will be unfazed no matter how much Jihoon puts it in! Diamond body!’

    Her face, which had been full of anxiety, was now filled with excitement, as she had found a plausible method.

    ‘Get ready, Jihoon. I’m going to make you fall for my body this time!’

    Her eyes were burning with more enthusiasm than ever as she made that resolution.

    ===

    The next day, afternoon.

    Yiseo came to our house.

    Right now, we were both lying comfortably on the bed, each messing around with our phones.

    “….”

    As I’ve said before, I really like these peaceful times.

    Although I still haven’t explained to Yiseo that I have to make a new sex partner, I just wanted to enjoy this comfortable atmosphere for now.

    “Ah, I accidentally pressed it!”

    “Sis, what game are you playing?”

    “…Just a minute.”

    I wonder what she’s doing that she’s putting off answering me and focusing on it.

    I turned my body and peeked at her phone lying next to me.

    “It’s mahjong solitaire.”

    “Euk! Keuk! Aaa!”

    She made a whining sound, so I guess the game didn’t go her way.

    She sighed in disappointment and suddenly jumped into my arms.

    “Eueok!”

    “I could have cleared it this time!”

    “You startled me, sis.”

    “Seueueup… haa.”

    Is she relieving her frustration with my scent?

    Yiseo will probably never smoke in her life.

    “…Hey. You took a shower.”

    “Huh? I took a shower when I came from the gym.”

    “I told you not to shower before I came.”

    “When you contacted me to say you were coming, I was already home, so there was nothing I could do.”

    “Then I guess I can’t help it.”

    She seemed to be convinced by my words, but she still seemed to have some regrets, so she buried her face in my chest and sniffed.

    “I think it’s been about two hours since you showered.”

    “Huh? How did you know?”

    “I can tell by smelling how strong the scent is.”

    She looked like she was asking what was obvious.

    No, wouldn’t it be surprising if you could match the time you took a shower by smelling the scent from over your clothes, not even bare skin?

    “You really have a dog nose. Then can you smell me from far away too?”

    “I don’t know, I haven’t really thought about it? I guess I can smell it better than other people?”

    Looking at the way she was talking, it seemed like she was confident in her abilities.

    That’s why I became curious about how much she could smell.

    “Do you want to experiment? To see how far you can smell me.”

    “No, what kind of experiment is that. More importantly, can I take off your clothes? I wanted to do it after smelling you.”

    “I’ll let you do it if you do the experiment with me.”

    “What are you trying to do again?”

    A voice full of distrust and wariness toward me.

    Still, I didn’t give up my experimental spirit toward curiosity.

    “I won’t let you if you don’t cooperate.”

    “Ah, why!”

    Yiseo protested, poking my arm, but I always had the upper hand in this situation.

    “…Alright. I’ll do it. What do I have to do?”

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